| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Feb 11 | STL | DEN | 18:06 | 19:11 |
Landed
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| Feb 08 | STL | DEN | 18:07 | 19:05 |
Landed
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| Feb 06 | STL | DEN | 18:06 | 19:05 |
Landed
|
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| Feb 05 | STL | DEN | 18:33 | 19:24 |
Landed
|
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| Feb 04 | STL | DEN | 18:06 | 18:52 |
Landed
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| Feb 01 | STL | DEN | 18:06 | 19:07 |
Landed
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| Jan 30 | STL | DEN | 18:55 | 19:52 |
Landed
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| Jan 29 | STL | DEN | 18:07 | 19:05 |
Landed
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| Jan 28 | STL | DEN | 18:18 | 19:24 |
Landed
|
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| Jan 25 | STL | DEN | 18:12 | 19:09 |
Landed
|
Track > |
United Airlines Flight UA551 connects St. Louis, United States to Denver, United States, taking off from St. Louis Lambert International Airport STL and landing at Denver International Airport DEN.
How long is the UA551 flight from St. Louis to Denver?
The average flight time from St. Louis to Denver is 1 hour and 57 minutes. The flight distance is 1235 km / 768 miles and the average flight speed is 631 km/h / 392 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA551 St. Louis to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA551 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA551 flight?
The latest flight took off on Thursday, February 12th, 2026 with the flight status being Landed on 19:11.
How else can the flight UA551 be referenced as?
This United Airlines flight can also be referenced as UAL551, UA0551, UA 551, UAL 551.
How often is flight UA551 delayed?
On average, 10% of all UA551 flights are delayed. The average delay is 14 minutes.
Can I get compensation for my delayed or cancelled UA551 flight or baggage issues?
If your UA551 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our UA551 Flight Tracker above for more details.
Flight UA551 is code-shared by 1 airline using the flight number AC4897
Other flights departing from St. Louis STL: AA3054, UA3516, WN3025, WN1152
Other flights arriving at Denver DEN: UA725, UA5101, UA5086, UA5078
All flights connecting St. Louis STL to Denver DEN.